1. Institute of Physical Chemistry, Clausthal University of Technology, D-38678 Clausthal−Zellerfeld, Germany, Biosurfaces Unit, CIC biomaGUNE, 20009 Donostia, San Sebastian, Spain, Department of Biochemistry and Molecular Biology, University of the Basque Country, 48940 Leioa, Spain, and Department of New Materials and Biosystems, Max Planck Institute for Metals Research, D-70569 Stuttgart, Germany